CN1074033C - Water-dispersed anti-sticking wear resistant paint - Google Patents
Water-dispersed anti-sticking wear resistant paint Download PDFInfo
- Publication number
- CN1074033C CN1074033C CN98126804A CN98126804A CN1074033C CN 1074033 C CN1074033 C CN 1074033C CN 98126804 A CN98126804 A CN 98126804A CN 98126804 A CN98126804 A CN 98126804A CN 1074033 C CN1074033 C CN 1074033C
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- coating
- water
- sticking
- wear resistant
- dispersion liquid
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Abstract
In the present invention, a kind of water dispersed paint is developed by adopting polyphenyl thioether as a binding agent and adopting polytetrafluoroethylene as an agent resisting friction and sticking, and the water dispersed paint is solidified at high temperature to make a refractory anti-sticking coating. The wear resistant service life of the coating is 640 to 960m/ mu m, the friction coefficient is 0.12 to 0.14, and the coating has good anti-sticking performance.
Description
The present invention relates to a kind of water-dispersion polyphenylene sulfide-polytetrafluoroethylene (PTFE) base anti-sticking wear resistant paint.
It is good anti-sticking wear resistant paint that polyphenylene sulfide cooperates with tetrafluoroethylene, but because the extremely low surface energy of tetrafluoroethylene makes that its dispersion is a difficult problem, the volatile solvents that adopt as dispersion agent more, and its drawback is coating cost height, and causes environmental pollution.
Order of the present invention provides a kind of water-dispersed anti-sticking wear resistant paint and preparation method thereof.
The present invention selects for use polyphenylene sulfide (PPS) as high temperature resistant binder through investigation in many materials, it is a kind of of engineering plastics, has the degree of crystallinity height, be not dissolved in any solvent below 170 ℃, resistance to chemical reagents is good, water-absorbent and oil absorbency are little, and shrinking percentage and linear expansivity are low, advantages such as wide use temperature and chemical stability.Especially valuable is to form high-intensity bonding coat with polytetrafluoroethylene (PTFE).Select for use polytetrafluoroethylene (PTFE) as lubricant, it has wide use temperature and the chemical stability similar to polyphenylene sulfide (PPS), good high and low temperature performance, can be at life-time service under the-250-260 ℃ condition, You Yi chemical stability extremely, youngster is insoluble to all strong acid, highly basic, strong oxidizer and organic solvent.And do not have smell, tasteless, nontoxic.Especially the extremely low surface free energy that it had is to the antiseized decisive action that plays.Also selecting other material for use is weighting agent properties-correcting agent.
PPS resin and PTFE resin have above many strong points, but as the starting material of coating, and its dispersed and film-forming properties is main difficult point, and this also is the problem to be solved in the present invention and claim place.For making PTFE be easy to disperse and can mix with PPS is fine, having selected water, ethanol, dioxane is dispersion medium, and sodium laurylsulfonate has been formed dispersion liquid of the present invention for table agent alive.
The present invention consists of (weight percentage):
Polyphenylene sulfide 15-25
Tetrafluoroethylene 5-10
The dispersion liquid surplus
The PTFE that the present invention selects for use is the ultrafine powder of surface active and thinning processing, mean particle size 5 μ m.The attached fat of the PPS that selects for use, melt viscosity 300 pools (310 ℃); PTFE micro mist suspension polymerization.PPS is 6 μ m through the ball milling mean particle size.
The dispersion liquid of this composition is: distilled water: ethanol: sodium laurylsulfonate: dioxane=48: 45: 2: 5.
Preparation method of the present invention may further comprise the steps:
A) the polyphenylene sulfide powder is poured in the ball grinder, adds the dispersion liquid that is three times in the PPS powder again, and ball milling to 6 μ m is standby.
B) tetrafluoroethylene adds the dispersion liquid of surplus, use magnetic stirrer, after thorough mixing is even, PPS dispersion liquid in the ball grinder that will make under continuing condition of stirring is poured in the beaker slowly, it is even to continue to be stirred to thorough mixing again, makes the PPS-PTFE water in suspension and disperses coating.
When ground was stainless steel, the surface needed sandblasting, acetone cleaning, airing, spraying.Ground is that carbon steel needs sandblast, bonderizing, spraying.
Disperse paint spay-coating in stainless steel with through parkerized steel surface the PPS-PTFE water in suspension with spray gun.The thickness of coating generally is controlled at 304 ± 5 μ m.Through 120 ℃ ± 10 ℃ dry 0.5h, then at 380 ℃ of plasticizing 0.15～2.0h.Obtain dun coating in surface of stainless steel, obtain the coating of grey black at parkerized steel surface.
The characteristics of coating of the present invention are that bonding strength is good, nontoxic, can prevent that other material from adhering to this surface, and good wear-resisting, lubrication are arranged again.
Use result on the cookie bakeware for food shows, the PPS-PTFE coating under the normal working temperature condition with Japanese import polytetrafluorethylecoatings coatings performance basically identical, the high thermal resistance performance of coating is better than Japanese coating, this coating is qualified through food test.On jetting type travelling electric iron, use and have good anti-adhesion effects equally.
Embodiments of the invention (for weight percentage) see Table 1,
Table 1
| Form | Example 1 | Example 2 | Example 3 | Example 4 |
| PPS | 16 | 17 | 20 | 24 |
| PTFE | 8 | 7 | 6 | 4 |
| Sodium laurylsulfonate | 2 | 2.5 | 3 | 5 |
| Dispersion liquid | 74 | 72 | 71 | 67 |
Test result sees Table 2.Its cut resistance test is to carry out on MHK-500 type trier.Test conditions is load 312N, and linear velocity 2.5m/s by complete worn out degree of being, represents wear resisting property with the friction stroke that the unit thickness is born with coating.
Table 2
| Test event | Test condition | Test result |
| Apparent | Range estimation | Taupe brown |
| Sticking power (level) | GB1720-79 | 1 |
| Snappiness (mm) | GB1731-79 | 1 |
| Resistance to impact shock (kg.cm) | GB1732-79 | ＞50 |
| Contact angle with water | The contact angle instrument | 105° |
| Wear resistance (m/ μ m) | Load: 320N speed: 154m/min | 640～960 |
| Frictional coefficient | - | 0.12～0.14 |
Claims (3)
1. water-dispersed anti-sticking wear resistant paint consists of (for weight percentage): polyphenylene sulfide 15-25, tetrafluoroethylene 5-10, form the dispersion liquid surplus by distilled water, ethanol, sodium laurylsulfonate, dioxane.
2. as the said coating of claim 1, it is characterized in that distilled water: ethanol: the dodecyl sodium sulfonate: dioxane=48: 45: 2: 5 (weight ratios).
3. as the preparation method of the said coating of claim 1, it is characterized in that may further comprise the steps:
A) polyphenylene sulfide adds in its weight triple dispersion liquid, and ball milling is to mean particle size 6 μ m.
B) tetrafluoroethylene adds in the dispersion liquid of prescription surplus, mixes, and to make the solution thorough mixing even with step a again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98126804A CN1074033C (en) | 1998-12-29 | 1998-12-29 | Water-dispersed anti-sticking wear resistant paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98126804A CN1074033C (en) | 1998-12-29 | 1998-12-29 | Water-dispersed anti-sticking wear resistant paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227242A CN1227242A (en) | 1999-09-01 |
| CN1074033C true CN1074033C (en) | 2001-10-31 |
Family
ID=5229780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98126804A Expired - Fee Related CN1074033C (en) | 1998-12-29 | 1998-12-29 | Water-dispersed anti-sticking wear resistant paint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1074033C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857770B (en) * | 2010-05-27 | 2012-10-10 | 北京航空航天大学 | Hydrophobic coating material for geothermal water conveying metal pipe and one-step film forming method for preparing hydrophobic coating |
| CN103555088B (en) * | 2013-11-13 | 2015-11-11 | 中国科学院重庆绿色智能技术研究院 | A kind of method preparing automatically cleaning fluoropolymer coating |
| CN104312425B (en) * | 2014-10-25 | 2016-08-31 | 中国海洋石油总公司 | A kind of polyphenylene sulfide coil coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51134725A (en) * | 1975-05-17 | 1976-11-22 | Nikken Toso Kogyo Kk | Polyphenylene sulfide resin coating composition |
| CN1100124A (en) * | 1993-09-10 | 1995-03-15 | 唐利伦 | High-temp. antisticking corrosion-proof paint |
| EP0659853A1 (en) * | 1993-12-27 | 1995-06-28 | LAMBDA S.r.l. | Rollable antistick water paint coating for aluminium cookware and procedure for its application |
| CN1110123A (en) * | 1994-04-06 | 1995-10-18 | 陈世全 | Pocket high cleaner for removing intracerebral hematoma |
-
1998
- 1998-12-29 CN CN98126804A patent/CN1074033C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51134725A (en) * | 1975-05-17 | 1976-11-22 | Nikken Toso Kogyo Kk | Polyphenylene sulfide resin coating composition |
| CN1100124A (en) * | 1993-09-10 | 1995-03-15 | 唐利伦 | High-temp. antisticking corrosion-proof paint |
| EP0659853A1 (en) * | 1993-12-27 | 1995-06-28 | LAMBDA S.r.l. | Rollable antistick water paint coating for aluminium cookware and procedure for its application |
| CN1110123A (en) * | 1994-04-06 | 1995-10-18 | 陈世全 | Pocket high cleaner for removing intracerebral hematoma |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1227242A (en) | 1999-09-01 |
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